/*
 *    Copyright [2015] [wisemapping]
 *
 *   Licensed under WiseMapping Public License, Version 1.0 (the "License").
 *   It is basically the Apache License, Version 2.0 (the "License") plus the
 *   "powered by wisemapping" text requirement on every single page;
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the license at
 *
 *       http://www.wisemapping.org/license
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
import TestSuite from './TestSuite';
import LayoutManager from '../../../src/components/layout/LayoutManager';
import OriginalLayout from '../../../src/components/layout/OriginalLayout';

class FreeTestSuite extends TestSuite {
  constructor() {
    $('#freeTest').css('display', 'block');
    super();
    this.testFreePosition();
    this.testFreePredict();
    this.testReconnectFreeNode();
    this.testSiblingOverlapping();
    this.testRootNodeChildrenPositioning();
    this.testBalancedFreePredict();
    this.testFreeReorder();
    this.testFreeOverlap();
  }

  testFreePosition() {
    console.log('testFreePosition:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position);
    manager.addNode(2, TestSuite.NODE_SIZE, position);
    manager.addNode(3, TestSuite.NODE_SIZE, position);
    manager.addNode(4, TestSuite.NODE_SIZE, position);
    manager.addNode(5, TestSuite.NODE_SIZE, position);
    manager.addNode(6, TestSuite.NODE_SIZE, position);
    manager.addNode(7, TestSuite.NODE_SIZE, position);
    manager.addNode(8, TestSuite.NODE_SIZE, position);
    manager.addNode(9, TestSuite.NODE_SIZE, position);
    manager.addNode(10, TestSuite.NODE_SIZE, position);
    manager.addNode(11, TestSuite.NODE_SIZE, position);
    manager.addNode(12, TestSuite.NODE_SIZE, position);
    manager.addNode(13, TestSuite.NODE_SIZE, position);
    manager.addNode(14, TestSuite.NODE_SIZE, position);
    manager.addNode(15, TestSuite.NODE_SIZE, position);
    manager.addNode(16, TestSuite.NODE_SIZE, position);
    manager.addNode(17, TestSuite.NODE_SIZE, position);
    manager.addNode(18, TestSuite.NODE_SIZE, position);
    manager.addNode(19, TestSuite.NODE_SIZE, position);
    manager.addNode(20, TestSuite.NODE_SIZE, position);
    manager.addNode(21, TestSuite.NODE_SIZE, position);
    manager.addNode(22, TestSuite.NODE_SIZE, position);

    manager.connectNode(0, 1, 0).connectNode(0, 2, 1).connectNode(0, 3, 2).connectNode(0, 4, 3);
    manager.connectNode(4, 21, 0).connectNode(4, 22, 0);
    manager.connectNode(1, 5, 0);
    manager.connectNode(5, 6, 0).connectNode(6, 8, 0).connectNode(8, 9, 0);
    manager.connectNode(5, 7, 1).connectNode(7, 10, 0);
    manager
      .connectNode(3, 11, 0)
      .connectNode(11, 14, 0)
      .connectNode(14, 18, 0)
      .connectNode(14, 19, 1)
      .connectNode(14, 20, 2);
    manager
      .connectNode(3, 12, 1)
      .connectNode(12, 15, 0)
      .connectNode(12, 16, 1)
      .connectNode(12, 17, 2);
    manager.connectNode(3, 13, 2);

    manager.layout();
    manager.plot('testFreePosition1', { width: 1400, height: 600 });

    console.log('\tmove node 12 to (300,30):');
    manager.moveNode(12, { x: 300, y: 30 });
    manager.layout(true);
    manager.plot('testFreePosition2', { width: 1400, height: 600 });
    this._assertFreePosition(manager, 12, { x: 300, y: 30 });

    console.log('\tmove node 13 to (340,180):');
    const node13Pos = { x: 340, y: 180 };
    manager.moveNode(13, node13Pos);
    manager.layout(true);
    manager.plot('testFreePosition3', { width: 1400, height: 600 });
    this._assertFreePosition(manager, 13, node13Pos);

    console.log('\tmove node 11 to (250,-50):');
    manager.moveNode(11, { x: 250, y: -50 });
    manager.layout(true);
    manager.plot('testFreePosition4', { width: 1400, height: 600 });
    this._assertFreePosition(manager, 11, { x: 250, y: -50 });
    $assert(
      manager.find(13).getPosition().x == node13Pos.x
      && manager.find(13).getPosition().y == node13Pos.y,
      "Node 13 shouldn't have moved",
    );

    console.log('\tmove node 7 to (350,-190):');
    manager.moveNode(7, { x: 350, y: -190 });
    manager.layout(true);
    manager.plot('testFreePosition5', { width: 1400, height: 600 });
    this._assertFreePosition(manager, 7, { x: 350, y: -190 });

    console.log('\tadd node 23 to 12:');
    manager.addNode(23, TestSuite.NODE_SIZE, position);
    manager.connectNode(12, 23, 3);
    manager.layout(true);
    manager.plot('testFreePosition6', { width: 1400, height: 600 });
    this._assertFreePosition(manager, null, null);

    console.log('\tmove node 4 to (-300, 190):');
    manager.moveNode(4, { x: -300, y: 190 });
    manager.layout(true);
    manager.plot('testFreePosition7', { width: 1400, height: 600 });
    this._assertFreePosition(manager, 4, { x: -300, y: 190 });

    console.log('\tadd node 24 to 3:');
    manager.addNode(24, TestSuite.NODE_SIZE, position);
    manager.connectNode(3, 24, 3);
    manager.layout(true);
    manager.plot('testFreePosition8', { width: 1400, height: 600 });
    this._assertFreePosition(manager, null, null);

    console.log('\tadd node 25 to 17:');
    manager.addNode(25, TestSuite.NODE_SIZE, position);
    manager.connectNode(17, 25, 0);
    manager.layout(true);
    manager.plot('testFreePosition9', { width: 1400, height: 600 });
    this._assertFreePosition(manager, null, null);

    console.log('OK!\n\n');
  }

  testFreePredict() {
    console.log('testFreePredict:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position);
    manager.addNode(2, TestSuite.NODE_SIZE, position);
    manager.addNode(3, TestSuite.NODE_SIZE, position);
    manager.addNode(4, TestSuite.NODE_SIZE, position);
    manager.addNode(5, TestSuite.NODE_SIZE, position);
    manager.addNode(6, TestSuite.NODE_SIZE, position);
    manager.addNode(7, TestSuite.NODE_SIZE, position);
    manager.addNode(8, TestSuite.NODE_SIZE, position);
    manager.addNode(9, TestSuite.NODE_SIZE, position);
    manager.addNode(10, TestSuite.NODE_SIZE, position);
    manager.addNode(11, TestSuite.NODE_SIZE, position);

    manager.connectNode(0, 1, 0);
    manager.connectNode(0, 2, 1);
    manager.connectNode(0, 3, 2);
    manager.connectNode(3, 4, 0);
    manager.connectNode(3, 5, 1);
    manager.connectNode(3, 6, 2);
    manager.connectNode(5, 7, 0);
    manager.connectNode(5, 8, 1);
    manager.connectNode(5, 11, 2);
    manager.connectNode(2, 9, 0);
    manager.connectNode(2, 10, 1);

    manager.layout();
    const graph = manager.plot('testFreePredict1', { width: 1000, height: 400 });

    const pos1 = { x: 370, y: 80 };
    const predict1 = manager.predict(5, 11, pos1, true);
    this._plotPrediction(graph, predict1);
    $assert(
      predict1.position.x == pos1.x && predict1.position.y == pos1.y,
      'free predict should return the same position',
    );

    const pos2 = { x: -200, y: 80 };
    const predict2 = manager.predict(0, 2, pos2, true);
    this._plotPrediction(graph, predict2);
    $assert(
      predict2.position.x == pos2.x && predict2.position.y == pos2.y,
      'free predict should return the same position',
    );

    const pos3 = { x: 200, y: 30 };
    const node5 = manager.find(5);
    const predict3 = manager.predict(3, 5, pos3, true);
    this._plotPrediction(graph, predict3);
    $assert(
      predict3.position.x == node5.getPosition().x && predict3.position.y == pos3.y,
      'free predict should return the x-coordinate of the node',
    );

    const pos4 = { x: -100, y: 45 };
    const node10 = manager.find(10);
    const predict4 = manager.predict(2, 10, pos4, true);
    this._plotPrediction(graph, predict4);
    $assert(
      predict4.position.x == node10.getPosition().x && predict4.position.y == pos4.y,
      'free predict should return the x-coordinate of the node',
    );

    console.log('OK!\n\n');
  }

  testReconnectFreeNode() {
    console.log('testReconnectFreeNode:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position);
    manager.addNode(2, TestSuite.NODE_SIZE, position);
    manager.addNode(3, TestSuite.NODE_SIZE, position);
    manager.addNode(4, TestSuite.NODE_SIZE, position);
    manager.addNode(5, TestSuite.NODE_SIZE, position);
    manager.addNode(6, TestSuite.NODE_SIZE, position);
    manager.addNode(7, TestSuite.NODE_SIZE, position);
    manager.addNode(8, TestSuite.NODE_SIZE, position);
    manager.addNode(9, TestSuite.NODE_SIZE, position);
    manager.addNode(10, TestSuite.NODE_SIZE, position);
    manager.addNode(11, TestSuite.NODE_SIZE, position);

    manager.connectNode(0, 1, 0);
    manager.connectNode(0, 2, 1);
    manager.connectNode(0, 3, 2);
    manager.connectNode(3, 4, 0);
    manager.connectNode(3, 5, 1);
    manager.connectNode(3, 6, 2);
    manager.connectNode(5, 7, 0);
    manager.connectNode(5, 8, 1);
    manager.connectNode(5, 11, 2);
    manager.connectNode(2, 9, 0);
    manager.connectNode(2, 10, 1);

    manager.layout();
    manager.plot('testReconnectFreeNode1', { width: 1000, height: 400 });

    console.log('\tmove node 5');
    manager.moveNode(5, { x: 250, y: 30 });
    manager.layout();
    manager.plot('testReconnectFreeNode2', { width: 1000, height: 400 });
    this._assertFreePosition(manager, 5, { x: 250, y: 30 });

    console.log('\treconnect node 5 to node 2');
    manager.disconnectNode(5);
    manager.connectNode(2, 5, 2);
    manager.layout();
    manager.plot('testReconnectFreeNode3', { width: 1000, height: 400 });
    $assert(
      manager.find(5).getPosition().y > manager.find(10).getPosition().y
      && manager.find(5).getPosition().x == manager.find(10).getPosition().x,
      'Node 5 is incorrectly positioned',
    );
    $assert(manager.find(5).getOrder() == 2, 'Node 5 should have order 2');

    console.log('\tmove node 8');
    manager.moveNode(8, { x: -370, y: 60 });
    manager.layout();
    manager.plot('testReconnectFreeNode4', { width: 1000, height: 400 });
    this._assertFreePosition(manager, 8, { x: -370, y: 60 });

    console.log('\treconnect node 5 to node 10');
    manager.disconnectNode(5);
    manager.connectNode(10, 5, 0);
    manager.layout();
    manager.plot('testReconnectFreeNode5', { width: 1000, height: 400 });
    $assert(
      manager.find(5).getPosition().y == manager.find(10).getPosition().y
      && manager.find(5).getPosition().x < manager.find(10).getPosition().x,
      'Node 5 is incorrectly positioned',
    );
    $assert(manager.find(5).getOrder() == 0, 'Node 5 should have order 0');

    console.log('reconnect node 5 to node 3');
    manager.disconnectNode(5);
    manager.connectNode(3, 5, 2);
    manager.layout();
    manager.plot('testReconnectFreeNode6', { width: 1000, height: 400 });
    $assert(
      manager.find(5).getPosition().y > manager.find(6).getPosition().y
      && manager.find(5).getPosition().x == manager.find(6).getPosition().x,
      'Node 5 is incorrectly positioned',
    );
    $assert(manager.find(5).getOrder() == 2, 'Node 5 should have order 2');

    console.log('\tmove node 8');
    manager.moveNode(8, { x: 370, y: 30 });
    manager.layout();
    manager.plot('testReconnectFreeNode7', { width: 1000, height: 400 });
    this._assertFreePosition(manager, 8, { x: 370, y: 30 });

    console.log('OK!\n\n');
  }

  testSiblingOverlapping() {
    console.log('testSiblingOverlapping:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
    manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(1, 2, 0);
    manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(1, 3, 1);
    manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(1, 4, 2);
    manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(1, 5, 3);
    manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(1, 6, 4);
    manager.addNode(7, TestSuite.NODE_SIZE, position).connectNode(1, 7, 5);
    manager.addNode(8, TestSuite.NODE_SIZE, position).connectNode(1, 8, 6);
    manager.addNode(9, TestSuite.NODE_SIZE, position).connectNode(0, 9, 4);
    manager.layout();
    manager.plot('testSiblingOverlapping1', { width: 800, height: 600 });

    console.log('\tmove node 2');
    manager.moveNode(2, { x: 250, y: -30 });
    manager.layout();
    manager.plot('testSiblingOverlapping2', { width: 800, height: 600 });
    this._assertFreePosition(manager, 2, { x: 250, y: -30 });

    console.log('\tmove node 7');
    manager.moveNode(7, { x: 250, y: 100 });
    manager.layout();
    manager.plot('testSiblingOverlapping3', { width: 800, height: 600 });
    this._assertFreePosition(manager, 7, { x: 250, y: 100 });

    console.log('OK!\n\n');
  }

  testRootNodeChildrenPositioning() {
    console.log('testRootNodeChildrenPositioning:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
    manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(0, 2, 1);
    manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(0, 3, 2);
    manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(0, 4, 3);
    manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(0, 5, 4);
    manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(0, 6, 5);
    manager.layout();
    manager.plot('testRootNodeChildrenPositioning1', { width: 800, height: 600 });

    console.log('\tmove node 1');
    manager.moveNode(1, { x: 150, y: 0 });
    manager.layout();
    manager.plot('testRootNodeChildrenPositioning2', { width: 800, height: 600 });
    this._assertFreePosition(manager, 1, { x: 150, y: 0 });

    console.log('\tmove node 4');
    manager.moveNode(4, { x: -140, y: 30 });
    manager.layout();
    manager.plot('testRootNodeChildrenPositioning3', { width: 800, height: 600 });
    this._assertFreePosition(manager, 4, { x: -140, y: 30 });

    console.log('\tmove node 2');
    manager.moveNode(2, { x: -150, y: -50 });
    manager.layout();
    manager.plot('testRootNodeChildrenPositioning4', { width: 800, height: 600 });
    this._assertFreePosition(manager, 2, { x: -150, y: -50 });

    // TODO(gb): fix this. It's not working
    //        console.log("\tmove node 6");
    //        manager.moveNode(6, {x:-150, y:-50});
    //        manager.layout();
    //        manager.plot("testRootNodeChildrenPositioning5", {width:800, height:600});
    //        this._assertFreePosition(manager, 6, {x:-150, y:-50});

    console.log('OK!\n\n');
  }

  testBalancedFreePredict() {
    console.log('testBalancedFreePredict:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
    manager.layout();
    const graph1 = manager.plot('testBalancedFreePredict1', { width: 800, height: 400 });

    const predict1 = manager.predict(0, 1, { x: 70, y: 0 }, true);
    this._plotPrediction(graph1, predict1);
    $assert(
      predict1.position.x == manager.find(1).getPosition().x,
      'Prediction x pos should be the same as node 1',
    );

    console.log('OK!\n\n');
  }

  testFreeReorder() {
    console.log('testFreeReorder:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
    manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(1, 4, 0);
    manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(1, 5, 1);
    manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(1, 6, 2);

    manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(0, 2, 2);
    manager.addNode(7, TestSuite.NODE_SIZE, position).connectNode(2, 7, 0);
    manager.addNode(8, TestSuite.NODE_SIZE, position).connectNode(2, 8, 1);
    manager.addNode(9, TestSuite.NODE_SIZE, position).connectNode(2, 9, 2);
    manager.addNode(10, TestSuite.NODE_SIZE, position).connectNode(2, 10, 3);

    manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(0, 3, 4);
    manager.addNode(11, TestSuite.NODE_SIZE, position).connectNode(3, 11, 0);
    manager.addNode(12, TestSuite.NODE_SIZE, position).connectNode(3, 12, 1);
    manager.addNode(13, TestSuite.NODE_SIZE, position).connectNode(3, 13, 2);
    manager.addNode(14, TestSuite.NODE_SIZE, position).connectNode(3, 14, 3);
    manager.addNode(15, TestSuite.NODE_SIZE, position).connectNode(3, 15, 4);
    manager.addNode(16, TestSuite.NODE_SIZE, position).connectNode(3, 16, 5);

    manager.layout();
    manager.moveNode(14, { x: 270, y: -160 });
    manager.layout();
    manager.plot('testFreeReorder1', { width: 800, height: 1200 });
    $assert(
      manager.find(14).getPosition().y > manager.find(10).getPosition().y,
      'Node 14 should be below branch 2',
    );

    console.log('OK!\n\n');
  }

  testFreeOverlap() {
    console.log('testFreeOverlap:');
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

    // Prepare a sample graph ...
    manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
    manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(1, 4, 0);
    manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(1, 5, 1);
    manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(1, 6, 2);

    manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(0, 2, 2);
    manager.addNode(7, TestSuite.NODE_SIZE, position).connectNode(2, 7, 0);
    manager.addNode(8, TestSuite.NODE_SIZE, position).connectNode(2, 8, 1);
    manager.addNode(9, TestSuite.NODE_SIZE, position).connectNode(2, 9, 2);
    manager.addNode(10, TestSuite.NODE_SIZE, position).connectNode(2, 10, 3);

    manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(0, 3, 4);
    manager.addNode(11, TestSuite.NODE_SIZE, position).connectNode(3, 11, 0);
    manager.addNode(12, TestSuite.NODE_SIZE, position).connectNode(3, 12, 1);
    manager.addNode(13, TestSuite.NODE_SIZE, position).connectNode(3, 13, 2);
    manager.addNode(14, TestSuite.NODE_SIZE, position).connectNode(3, 14, 3);
    manager.addNode(15, TestSuite.NODE_SIZE, position).connectNode(3, 15, 4);
    manager.addNode(16, TestSuite.NODE_SIZE, position).connectNode(3, 16, 5);

    manager.layout();
    manager.plot('testFreeOverlap1', { width: 800, height: 1200 });

    manager.moveNode(14, { x: 270, y: 7 });
    manager.layout();
    manager.plot('testFreeOverlap2', { width: 800, height: 1200 });
    $assert(
      manager.find(2).getPosition().y > manager.find(1).getPosition().y,
      'Branches 1 and 2 are overlapping',
    );

    console.log('OK!\n\n');
  }

  _assertFreePosition(manager, id, position) {
    if (id != null && position.x != null && position.y != null) {
      const node = manager.find(id);
      $assert(
        node.getPosition().x == position.x && node.getPosition().y == position.y,
        `Freely moved node ${id
        } is not left at free position (${position.x
        },${position.y
        }). `
        + `Actual position: (${node.getPosition().x
        },${node.getPosition().y
        })`,
      );
    }

    const treeSet = manager._treeSet;
    treeSet._rootNodes.forEach(((rootNode) => {
      const heightById = rootNode.getSorter().computeChildrenIdByHeights(treeSet, rootNode);
      this._assertBranchCollision(treeSet, rootNode, heightById);
    }));
  }

  _assertBranchCollision(treeSet, node, heightById) {
    const children = treeSet.getChildren(node);
    const childOfRootNode = treeSet._rootNodes.contains(node);

    children.forEach((child) => {
      const height = heightById[child.getId()];
      let siblings = treeSet.getSiblings(child);
      if (childOfRootNode) {
        siblings = siblings.filter((sibling) => child.getOrder() % 2 == sibling.getOrder() % 2);
      }

      siblings.forEach((sibling) => {
        this._branchesOverlap(child, sibling, heightById);
      });

    });

    children.forEach(((child) => {
      OriginalLayout._assertBranchCollision(treeSet, child, heightById);
    }).bind(this));
  }

  static _branchesOverlap(branchA, branchB, heightById) {
    const topA = branchA.getPosition().y - heightById[branchA.getId()] / 2;
    const bottomA = branchA.getPosition().y + heightById[branchA.getId()] / 2;
    const topB = branchB.getPosition().y - heightById[branchB.getId()] / 2;
    const bottomB = branchB.getPosition().y + heightById[branchB.getId()] / 2;

    $assert(
      topA >= bottomB || bottomA <= topB,
      `Branches ${branchA.getId()} and ${branchB.getId()} overlap`,
    );
  }
}

export default FreeTestSuite;